:root{--atlas-navy:#0b2948;--atlas-blue:#174b7d;--atlas-paper:#fff;--atlas-mist:#eef4f8;--atlas-ink:#152e45;--atlas-muted:#50687b;--atlas-rule:#d9e3eb}
*{box-sizing:border-box}html{scroll-behavior:smooth;scroll-padding-top:24px}body{margin:0;background:var(--atlas-paper);color:var(--atlas-ink);font:15px/1.85 "PingFang SC","Microsoft YaHei",Arial,sans-serif}a{color:inherit;text-decoration:none}button,summary,a{-webkit-tap-highlight-color:transparent}a:focus-visible,summary:focus-visible,[tabindex]:focus-visible{outline:3px solid #3f7fb7;outline-offset:4px}h1,h2,h3,p,dl,dd,ul,ol{margin:0}h1,h2,h3{line-height:1.45}h1{font-family:"Songti SC","STSong",Georgia,serif;font-size:clamp(36px,3.7vw,52px);font-weight:600;letter-spacing:-.8px;max-width:850px;overflow-wrap:anywhere}h2{font-size:24px;font-weight:650;overflow-wrap:anywhere}h3{font-size:17px;font-weight:600}p{color:var(--atlas-muted)}p+p{margin-top:17px}
.atlas-directory{position:fixed;inset:0 auto 0 0;width:248px;background:var(--atlas-navy);color:#fff;display:flex;flex-direction:column;overflow-y:auto;padding:38px 24px;z-index:30}.atlas-brand{display:flex;flex-direction:column;align-items:flex-start;gap:12px;padding:0 12px}.atlas-brand img{display:block;object-fit:contain}.atlas-brand span{font-size:12px;color:#b6c8d9;letter-spacing:1px}.atlas-nav-title{font-size:11px;color:#91acc5;margin:48px 12px 15px}.atlas-wide-menu ul,.atlas-compact-menu ul{list-style:none;padding:0}.atlas-wide-menu li+li{margin-top:6px}.atlas-wide-menu a{display:flex;align-items:center;gap:14px;padding:13px 14px;border-radius:4px;color:#c0d1e1;font-size:14px}.atlas-wide-menu a[aria-current]{background:#fff;color:var(--atlas-navy);font-weight:600}.atlas-wide-menu a:hover{background:#22435f;color:#fff}.atlas-wide-menu a[aria-current]:hover{background:#fff;color:var(--atlas-navy)}.atlas-wide-menu svg{width:19px;height:19px}.atlas-sidebar-action{margin-top:auto;padding:60px 12px 0}.atlas-sidebar-action p{color:#a8bed1;font-size:12px}.atlas-sidebar-action small{display:block;color:#8aa6be;font-size:10px;margin-top:14px}.atlas-button{display:inline-flex;align-items:center;justify-content:center;text-align:center;line-height:1.65;padding:13px 21px;min-height:48px;font-size:13px;font-weight:600;border-radius:3px;border:1px solid transparent}.atlas-side-button{margin-top:18px;background:#dceaf5;color:var(--atlas-navy);width:100%}.atlas-blue{background:var(--atlas-blue);color:white}.atlas-blue:hover{background:#0b355a}.atlas-outline{border-color:#acbdcd;color:var(--atlas-blue);background:#fff}.atlas-outline:hover{border-color:var(--atlas-blue);background:#f6f9fc}.atlas-reader{margin-left:248px}.atlas-topline{display:flex;align-items:center;justify-content:space-between;gap:20px;border-bottom:1px solid var(--atlas-rule);padding:22px clamp(30px,4.4vw,68px);font-size:12px}.atlas-topline nav{display:flex;gap:12px;color:var(--atlas-muted)}.atlas-topline>a{color:var(--atlas-blue);text-decoration:underline;text-underline-offset:4px}.atlas-document{max-width:1280px;padding:0 clamp(30px,4.4vw,68px);margin:auto}.atlas-opening{padding:62px 0 54px;border-bottom:1px solid var(--atlas-rule)}.atlas-category{color:#5c7890;font-size:12px;margin-bottom:18px}.atlas-deck{font-size:16px;line-height:1.95;max-width:720px;margin-top:25px}.atlas-actions{display:flex;flex-wrap:wrap;gap:12px;margin-top:28px}.atlas-disclosure{font-size:12px;color:#60798c;margin-top:15px!important;max-width:720px}.atlas-chapter{padding:42px 0;border-bottom:1px solid var(--atlas-rule)}.atlas-chapter>h2{margin-bottom:22px}.atlas-section-lead{margin-bottom:24px}.atlas-route-list{display:grid}.atlas-route-row{display:flex;align-items:center;gap:24px;padding:24px 0;border-bottom:1px solid #e6ecf1}.atlas-route-row:last-child{border:0;padding-bottom:0}.atlas-route-row>svg{flex-shrink:0;color:var(--atlas-blue);width:34px;height:34px}.atlas-route-row>span:nth-child(2){flex:1;min-width:0}.atlas-route-row strong{display:block;font-size:19px}.atlas-route-row small{display:block;max-width:650px;font-size:13px;color:var(--atlas-muted);margin-top:7px}.atlas-route-label{font-size:12px;white-space:nowrap;color:var(--atlas-blue)}.atlas-footnote{font-size:12px;margin-top:14px}.atlas-steps{list-style:none;counter-reset:atlas-step;padding:0}.atlas-steps li{counter-increment:atlas-step;position:relative;padding:23px 0 23px 52px;border-top:1px solid var(--atlas-rule)}.atlas-steps li:first-child{border-top:0;padding-top:5px}.atlas-steps li::before{content:counter(atlas-step);position:absolute;left:0;top:23px;display:grid;place-items:center;width:29px;height:29px;border:1px solid #9bb0c2;border-radius:50%;color:var(--atlas-blue);font-size:12px}.atlas-steps li:first-child::before{top:5px}.atlas-steps p{margin-top:8px;max-width:780px;font-size:14px}.atlas-explainer>div{display:grid;grid-template-columns:160px 1fr;gap:25px;padding:21px 0;border-top:1px solid var(--atlas-rule)}.atlas-explainer dt{font-weight:600}.atlas-explainer dd{color:var(--atlas-muted);font-size:14px;max-width:780px}.atlas-answer{border-top:1px solid var(--atlas-rule)}.atlas-answer:last-child{border-bottom:1px solid var(--atlas-rule)}.atlas-answer summary{display:flex;align-items:center;justify-content:space-between;gap:24px;list-style:none;cursor:pointer;padding:20px 0;min-height:64px;font-size:15px;font-weight:550}.atlas-answer summary::-webkit-details-marker{display:none}.atlas-answer summary::after{content:"+";font-size:24px;font-weight:300;color:var(--atlas-blue);flex-shrink:0}.atlas-answer[open] summary::after{content:"−"}.atlas-answer[open] summary{color:var(--atlas-blue)}.atlas-answer>p{padding:0 40px 23px 0;font-size:14px;max-width:900px}.atlas-callout,.atlas-help-note{background:var(--atlas-mist);padding:28px 30px;margin-top:34px;border-left:3px solid var(--atlas-blue)}.atlas-callout h2,.atlas-help-note h2{font-size:22px;margin-bottom:13px}.atlas-callout p,.atlas-help-note p{font-size:14px;max-width:800px}.atlas-callout .atlas-button,.atlas-help-note .atlas-button{margin-top:20px}.atlas-reading ul{display:grid;grid-template-columns:repeat(3,1fr);gap:20px;list-style:none;padding:0}.atlas-reading a{display:block;border-left:2px solid #aebfcd;padding:0 0 0 16px;font-size:15px;color:var(--atlas-blue)}.atlas-reading a span{display:block;font-size:11px;color:var(--atlas-muted);margin-top:4px}.atlas-reference{padding:38px 0 50px}.atlas-reference h2{font-size:18px}.atlas-reference ul{display:flex;gap:10px 25px;flex-wrap:wrap;padding:0;list-style:none;margin-top:18px}.atlas-reference a{font-size:12px;text-decoration:underline;text-underline-offset:4px;color:var(--atlas-muted)}.atlas-colophon{background:#f3f7fa;border-top:1px solid var(--atlas-rule);padding:30px clamp(30px,4.4vw,68px)}.atlas-colophon nav{display:flex;flex-wrap:wrap;gap:16px 26px;font-size:12px;margin-bottom:18px;color:var(--atlas-blue)}.atlas-colophon p{font-size:11px;max-width:850px}.atlas-colophon p+p{margin-top:7px}.atlas-compact-menu{display:none}.atlas-skip{position:fixed;top:-100px;left:270px;padding:12px 20px;background:white;z-index:100;border:2px solid var(--atlas-blue)}.atlas-skip:focus{top:12px}
@media(max-width:1150px){.atlas-directory{width:216px;padding:30px 18px}.atlas-reader{margin-left:216px}.atlas-document{padding:0 35px}.atlas-topline{padding:20px 35px}.atlas-route-label{display:none}.atlas-explainer>div{grid-template-columns:130px 1fr;gap:20px}.atlas-colophon{padding:30px 35px}.atlas-skip{left:235px}}
@media(max-width:800px){html{scroll-padding-top:20px}.atlas-directory{position:relative;inset:auto;width:100%;padding:16px 22px;display:grid;grid-template-columns:1fr auto;align-items:center;overflow:visible}.atlas-brand{flex-direction:row;align-items:center;padding:0;gap:16px}.atlas-brand img{width:73px;height:32px}.atlas-brand span{font-size:11px;letter-spacing:0}.atlas-nav-title,.atlas-wide-menu,.atlas-sidebar-action{display:none}.atlas-compact-menu{display:block;position:relative}.atlas-compact-menu summary{cursor:pointer;min-height:44px;display:flex;align-items:center;padding:0 12px;border:1px solid #58728b;border-radius:3px;font-size:12px}.atlas-compact-menu nav{position:absolute;right:0;top:51px;background:var(--atlas-navy);width:240px;box-shadow:0 8px 22px #0b294830;z-index:50;padding:10px;border:1px solid #58728b}.atlas-compact-menu a{display:flex;align-items:center;gap:14px;padding:12px;color:#d5e2ee;font-size:14px}.atlas-compact-menu a[aria-current]{background:white;color:var(--atlas-navy)}.atlas-compact-menu svg{width:18px;height:18px}.atlas-reader{margin-left:0}.atlas-document{padding:0 28px}.atlas-topline{padding:18px 28px}.atlas-opening{padding:40px 0}.atlas-deck{font-size:15px}.atlas-colophon{padding:28px}.atlas-skip{left:15px}}
@media(max-width:500px){body{font-size:14px}.atlas-brand span{display:none}.atlas-directory{padding:12px 20px}.atlas-document{padding:0 20px}.atlas-topline{padding:15px 20px;font-size:11px;gap:14px}.atlas-topline>a{max-width:130px;text-align:right}h1{font-size:36px;line-height:1.4;letter-spacing:-.5px}h2{font-size:23px}.atlas-category{font-size:11px;margin-bottom:14px}.atlas-opening{padding:34px 0 35px}.atlas-deck{font-size:15px;margin-top:20px}.atlas-actions{gap:10px;margin-top:23px}.atlas-button{font-size:12px;padding:12px 15px;min-height:46px}.atlas-disclosure{font-size:11px}.atlas-chapter{padding:34px 0}.atlas-route-row{gap:15px;padding:22px 0;align-items:flex-start}.atlas-route-row>svg{width:27px;height:27px;margin-top:3px}.atlas-route-row strong{font-size:18px}.atlas-route-row small{font-size:13px}.atlas-explainer>div{grid-template-columns:1fr;gap:8px;padding:20px 0}.atlas-steps li{padding-left:43px}.atlas-steps p{font-size:14px}.atlas-answer summary{font-size:15px;padding:18px 0;gap:18px}.atlas-answer>p{padding-right:10px}.atlas-callout,.atlas-help-note{padding:24px 20px}.atlas-reading ul{grid-template-columns:1fr;gap:22px}.atlas-reference{padding:30px 0}.atlas-reference ul{display:grid;gap:12px}.atlas-colophon{padding:28px 20px}}
@media(prefers-reduced-motion:reduce){html{scroll-behavior:auto}}

.atlas-device-matrix{display:grid;grid-template-columns:repeat(3,minmax(0,1fr));gap:18px}
.atlas-device-card{border:1px solid var(--atlas-rule);border-top:3px solid var(--atlas-blue);padding:22px;min-width:0;background:#fff}
.atlas-device-card header{display:flex;align-items:center;gap:12px;color:var(--atlas-blue);margin-bottom:20px}
.atlas-device-card header svg{flex-shrink:0;width:23px;height:23px}
.atlas-device-card h3{font-size:17px}
.atlas-device-card dl>div{border-top:1px solid var(--atlas-rule);padding:15px 0}
.atlas-device-card dl>div:last-child{padding-bottom:0}
.atlas-device-card dt{font-size:11px;color:#62798d;margin-bottom:7px}
.atlas-device-card dd{font-size:13px;color:var(--atlas-ink)}
.atlas-device-card a{color:var(--atlas-blue);text-decoration:underline;text-underline-offset:4px}
.atlas-status{border-top:1px solid #38546f;border-bottom:1px solid #38546f;padding:14px 0;margin-bottom:22px}
.atlas-status>div{display:flex;justify-content:space-between;gap:14px;font-size:11px}
.atlas-status>div+div{margin-top:8px}
.atlas-status dt{color:#9db5ca}
.atlas-status dd{color:#e1ebf3}
.atlas-review-date{font-size:11px;color:#60798c;margin-top:7px!important}
.atlas-diagnostic{border-top:1px solid var(--atlas-rule)}
.atlas-diagnostic summary{display:flex;justify-content:space-between;align-items:center;gap:22px;cursor:pointer;list-style:none;min-height:64px;padding:20px 0;font-weight:550;font-size:15px}
.atlas-diagnostic summary::-webkit-details-marker{display:none}
.atlas-diagnostic summary::after{content:"+";font-size:24px;font-weight:300;color:var(--atlas-blue);flex-shrink:0}
.atlas-diagnostic[open] summary{color:var(--atlas-blue)}
.atlas-diagnostic[open] summary::after{content:"−"}
.atlas-diagnostic>p{padding:0 26px 22px 0;font-size:14px}
.atlas-steps .atlas-diagnostic{border:0}
.atlas-steps .atlas-diagnostic summary{padding:0;min-height:30px;font-size:17px}
.atlas-steps .atlas-diagnostic>p{padding:5px 0 0;margin-top:6px}
@media(max-width:1100px){.atlas-device-matrix{grid-template-columns:1fr}.atlas-device-card dl{display:grid;grid-template-columns:1fr 1fr;gap:0 30px}}
@media(max-width:500px){.atlas-device-card{padding:22px 20px}.atlas-device-card dl{grid-template-columns:1fr}.atlas-diagnostic summary{font-size:15px;gap:18px}.atlas-steps .atlas-diagnostic summary{font-size:17px}}